Emerson 250-400kVA manual If the alarm cannot be reset, or if the alarm condition

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				UPS Alarm and Status Messages
	Table 7	Liebert NXL alarm and status messages (continued)

	Event Message		Event Definition	Recommended Action
			This event is for informational purposes, and
			informs the user that Service Code is currently	Under normal circumstances, none.
	Service Code		running.	If this message is active, and Service Code is not
	Active		This status message is self-clearing. When the	loaded, contact your factory-authorized service
			condition is no longer present, the alarm and any	provider.
			control activity tied to the alarm reverts to normal.
				Press “SILENCE” to silence the audible alarm.
			An equipment temperature sensor is reporting an	Press “RESET” to clear the alarm.
	Temp Sense Fail		invalid temperature. The controls ignore	If the alarm cannot be reset, or if the alarm condition
			temperatures from a failed sensor.	returns, contact your factory-authorized service
				provider.
				Press “SILENCE” to silence the audible alarm.
				Check the Event Log by pressing “Status Reports,”
				“Event Log” to investigate why the UPS tried to
			An event (such as an Inverter fault) caused an	transfer to bypass and why the BPSS failed.
			attempted automatic transfer to bypass and the	If CB3 is available (as displayed on the One-Line
	Xfer to Byp Failed		transfer failed.	Display), close CB3 to restore power to the load.
	Xfer to Byp Failed		The controls detect the Static Bypass Switch	Press “RESET” to attempt to clear any latched
			The controls detect the Static Bypass Switch	Press “RESET” to attempt to clear any latched
			(BPSS) failed to assume the load and the Inverter	alarms or faults.
			was off.	If conditions appear normal, attempt to restart the
				UPS by pressing “Startup,” “Manual Start” and
				follow the prompts.
				Contact your factory-authorized service provider.

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Contents Liebert NXL Battery Cabinet Precautions Contacting Liebert for SupportTable of Contents Specifications Figures Page Important Safety Instructions Modes of Operation Normal ModeGeneral Description Bypass Mode Battery ModeMaintenance Bypass OptionsIntroduction Features Main component locationsMimic display Monitor/mimic display example Normal power flow Monitor/mimic display example Utility failMonitor/mimic display example Load on bypass, UPS On Touchscreen Navigation Main Display Screen Menu treeConfigurations Menu Rating Rating ParametersUser Settings System Settings parametersAdjustable Setpoints Adjustable setpoints parametersCell Count Adjustment Startup Menu Event ManagementStatus Reports Menu Shutdown Menu Shutdown menuTransfer/retransfer commands Transfer MenuBattery Management Menu Time remaining displayDisplay summary see Figure Reset MeteringHelp SilenceOK to Transfer Load on bypass, UPS availableInput Power Failure-Load on Battery Input power fail, load on batteryOff Battery Emergency Module OffManual Procedures Remote Emergency Power OffStartup Procedure Startup commands Load Transfer Procedures Transfer ProcedureRe-Transfer Procedure Maintenance Bypass Load TransfersMaintenance Bypass Load Transfers-If Load is on UPS Bypass Shutdown Procedures UPS Shutdown ProcedureSystem Shutdown Procedure Automatic OperationsAutomatic Transfers to Bypass Overload Condition Current-versus-time curves of overload capacityAutomatic Transfers to Bypass, UPS System Faults Automatic Retransfers to UPSSafety Precautions Liebert Services Routine MaintenanceRecord Log Air FiltersBattery Maintenance UPS component service lifeLimited Life Components Component Expected Life ReplaceBattery Safety Precautions Battery retorque values Matching Battery Cabinets-OptionalBattery voltage, nominal and float Torque specifications, unless otherwise labeled Detecting TroubleRack-Mounted Batteries Torque RequirementsCorrective Actions Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Battery Operation Environmental specificationsParameter Specification Environmental ConditionsElectrical specifications Battery & DC ParametersLiebert NXL Model Size 250 Input ParametersPhysical Parameters & Standards, in mm Liebert NXL Model SizeSystem Parameter Specifications Liebert NXL alarm and status messages Event Message Event Definition Recommended ActionObserve the One-Line Display. If the input line is Observe the One-Line Display. To identify which Do not Attempt to Close CB3 Until Reset Displayed on the Module Output Meter. If UPS controls monitor the DC Bus positive Resolve the issue that precipitated the EPO Check the One-Line Display for system status UPS, to transfer back to Inverter If this alarm occurs on an operational unit, it Attempt to manually close the disconnect by Module Output Meter. If the load is less than Output Power Factor. If the displayed power factor Until a service visit has been made and action taken When manual transfers are enabled Under normal conditions, no user action is required Observe the One-Line Display and the Active Event If the command to terminate Regeneration Mode If the alarm cannot be reset, or if the alarm condition UPS Alarm and Status Messages UPS Alarm and Status Messages Page Ne t ItiTi n That